Finding the Fourth Proportional to 5,639,255.64, 7,781,971.37 and 3,191,814.09
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Solution
The fourth proportional to 5,639,255.64, 7,781,971.37 and 3,191,814.09 is: 4,404,589.44
Step by Step Solution
- Step 1: Write the proportion equation
5,639,255.64 : 7,781,971.37 = 3,191,814.09 : x - Step 2: Convert to fraction form
5,639,255.64/7,781,971.37 = 3,191,814.09/x - Step 3: Cross multiply
5,639,255.64x = 7,781,971.37 × 3,191,814.09 - Step 4: Simplify right side
5,639,255.64x = 24,838,605,850,783.53 - Step 5: Solve for x
x = 24,838,605,850,783.53/5,639,255.64 - Step 6: Final answer
x = 4,404,589.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.